docs: def _dtfromtimestamp(timestamp):
      """Custom datetime timestamp constructor. because Windows. again.
      """
      try:
          return datetime.datetime.fromtimestamp(timestamp)
      except OSError:
          timestamp -= time.timezone
          dt = datetime.datetime(1970, 1, 1) + datetime.timedelta(seconds=timestamp)
          if _isdst(dt):
              timestamp += 3600
              dt = datetime.datetime(1970, 1, 1) + datetime.timedelta(seconds=timestamp)
          return dt